Mt 24.43; Lk 12.39; 1 Th 5.2; Rev 16.15. The day of the Lord's return will surprise us like a thief. The heavens will disappear with a loud noise, and the heat will melt the whole universe.#3.10 the whole universe: Probably the sun, moon, and stars, or the elements that everything in the universe is made of. Then the earth and everything on it will be seen for what they are.#3.10 will be seen for what they are: Some manuscripts have “will go up in flames.” 11Everything will be destroyed. So you should serve and honor God by the way you live. 12You should look forward to the day when God judges everyone, and you should try to make it come soon.#3.12 and you should try to make it come soon: Or “and you should eagerly desire for that day to come.” On that day the heavens will be destroyed by fire, and everything else will melt in the heat.